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Based on the formation mechanism from the grinding skin at first glance from the FAG bearing, there are 2 main factors which have an excellent impact on the grinding skin, namely grinding heat and grinding force. Due to the limited understanding of the writer, now within the following passages it can discuss why the FAG bearing loses the effectiveness from your perspective of grinding force. How exactly does the grinding heat occur? Throughout the grinding process, due to the touch of grinding wheel and work-piece, the FAG bearing results in a lot of energy and grinding heat. Thus the area of the grinding area suddenly produces the top temperature. The instant high temperature leads to the oxidization from the working surface as well as other changes like amorphous composition, high tempering, secondary quenching, cracking, burn and so forth. For your failure from the FAG bearing, the top oxide layer, amorphous tissue layer and-temper layer would be the relatively major reasons. The so-called surface oxide layer is actually created with the reaction involving the steel surface and oxygen within the air underneath the instant high temperature. The oxide layer is very thin. It is merely about 20~30nm. What individuals should focus on would be that the thickness from the oxide layer has got the corresponding relation using the total thickness from the surface grinding skin. Out of this point, it may be determined that the thickness from the oxide layer features a direct relationship using the grinding technology. Simultaneously, this is the important indicator for the caliber of the grinding. When it comes to amorphous tissue layer, it really is formed once the working surface achieves the melting state due to the instant high temperature. The melting metal molecular flow is evenly coated around the working surface and meanwhile it really is cooled off in a extremely fast speed from the base metal. The amorphous tissue layer can also be quite thin, however its hardness and toughness are extremely high. Since it only has 10 nanometers, it is extremely simple to be removed throughout the precision grinding process. The 3rd the first is the top-temper layer. Within the grinding area the instant high temperature helps make the temperature from the surface greater than the temperature for your work-piece's tempering. Prior to the temperature will not be achieved towards the austenitizing temperature, the top of the FAG bearing results in the retempering step-by-step using the increase from the temperature. Simultaneously, the hardness can also be reduced. The greater the heating-up temperature is raised, the greater serious the hardness is reduced. For more information about FAG bearings and INA bearings, simply visit our website.
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